The Acer Predator 21 X is a huge laptop that is packed with top notch gaming hardware. The headline feature is the curved IPS panel with a refresh rate of 120Hz that sports G-Sync technology. There is minor controversy about the size of the screen as the specification says 21-inches and our tape measure suggests 21.5-inches but what the heck, it's a mere detail (and measuring a curved screen is an inexact science anyway.) The rest of the specification includes a mobile Core i7, dual GTX 1080 GPUs in SLI and a bunch of DDR4 memory along with a pair of SSDs in RAID 0. It's a gaming beast of a laptop but that knowledge does not prepare you for the size and weight of the Predator 21 X.